强电流下弓网滑动电接触磨损特性分析和建模  

Analysis and modeling of wear characteristics of pantograph-catenary sliding electrical contact under high current

作　　者：陈忠华[1] 李纪臻 邢植良 王喜利[1] 时光[1] CHEN Zhonghua;LI Jizhen;XING Zhiiang;WANG Xii;SHI Guang(Faculty of Electrical and Control Engineering,Liaoning Technical University,Huludao 125105,)

机构地区：[1]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105

出　　处：《辽宁工程技术大学学报（自然科学版）》2023年第6期740-747,共8页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省自然基金指导计划资助项目(2019-ZD-0034)。

摘　　要：针对电气化铁路弓网滑动电接触的摩擦磨损问题,采用自制的弓网滑动电接触实验机,研究了受电弓滑板的磨损特性,获得了磨损率随接触电流、滑动速度、压力波动幅值及其波动频率的变化规律。以此为基础,利用Archard磨损模型,通过无载流磨损、压力载荷波动磨损、载流摩擦下的总磨损率与纯机械摩擦下磨损率的比例关系研究,构造出磨损率的数学表达式。将通用全局优化算法和麦夸特算法相结合,对磨损率模型的参数辨识寻优,并证明了磨损率模型的准确性。从磨损率的定性分析转化为磨损率的定量分析,对进一步研究弓网系统的磨损有一定的指导意义。In order to solve the friction and wear problem of the sliding electric contact of the pantograph of electrified railway,the wear characteristics of the pantograph slide were studied by using the self-made sliding electric contact tester of the pantograph slide,and the variation law of the wear rate with the contact current,sliding speed,pressure fluctuation amplitude and fluctuation frequency was obtained.Based on this,the mathematical model expression of the wear rate is constructed through the study of the proportional relationship between no-current-carrying wear,pressure load fluctuation wear,total wear rate under current-carrying friction and wear rate under pure mechanical friction by using Archard wear model.The combination of general global optimization algorithm and McQuart algorithm is used to optimize the parameter identification of the wear rate model expression,and the accuracy of the wear rate model is proved.The qualitative analysis of the wear rate is transformed into the quantitative analysis of the wear rate,which has certain guiding significance for further research on the wear of the arch mesh system.

关 键 词：弓网系统 摩擦磨损 Archard磨损模型 参数辨识 

分 类 号：TM501[电气工程—电器]